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Intern
Joined: 17 Mar 2010
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24 Mar 2010, 16:25
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Hello everyone

After solving all the problems in the thread below
collection-of-work-rate-problems-77092-60.html

and checking them with solution provided by other members of the forum I have put all the questions and answers together in a word document. My main contribution are the RTW tables which I set up for almost all problems as I find it a very convenient way of organizing the data.
I would like to thank to h2polo, snipertrader and Ian Stewart (there are some words of widsom of gim in the document) and everybody else who contributed to that thread.

Hope it helps

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If my post helped you : KUDOS KUDOS KUDOS

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28 Mar 2010, 01:32
1
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06 May 2010, 04:39
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Hi leilak, no problem. Thanks for answering.
there are a lot of ugly numbers. An easy approach must be.
For this case of problems, maybe we can plug in numbers with the answer and see what happens
what do you think?

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27 Mar 2010, 04:32
Thanks Bro!!

Kudos!!!
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28 Mar 2010, 10:20
Kudus man..............

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01 Apr 2010, 03:59
Thank you very much.

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01 Apr 2010, 04:19
Thanks! man.
Kudos!
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Kudos??

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01 Apr 2010, 07:41
you're welcome
p.s i'm a girl

Posted from my mobile device
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01 Apr 2010, 08:09
looks good. Yet to solve the questions....but advance Kudos...
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Critical Reasoning: http://gmatclub.com/forum/best-critical-reasoning-shortcuts-notes-tips-91280.html

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I hope these will help to understand the basic concepts & strategies. Please Click ON KUDOS Button.

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01 Apr 2010, 08:40
Kudos,

thank you very much!

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02 Apr 2010, 02:40
Thank you! Kudos
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02 Apr 2010, 05:18
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03 Apr 2010, 05:24
Hi thank for sharing the file.
In problem 10 for example, it appears this expression:

Quote:
(40/(x-4))+(40/x) = (50/6) => x=12

what it is the fastest way to solve it?

Thanks!

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06 Apr 2010, 12:41
leilak wrote:
you're welcome
p.s i'm a girl

Posted from my mobile device

oops! didn't know that
I wonder why there aren't many Kudos' as it's been downloaded 317 times but only 9 kudos, looks like GC members are becoming a bit lazy hehe
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06 May 2010, 02:40
netrix wrote:
Hi thank for sharing the file.
In problem 10 for example, it appears this expression:

Quote:
(40/(x-4))+(40/x) = (50/6) => x=12

what it is the fastest way to solve it?

Thanks!

(40/(x-4))+(40/x) = (50/6) => (40x + 40x - 160)*6 = 50x(x-4)

=> 5x^2 - 68x + 96 = 0

if you get the roots out with the formula x = (-b +/- sqrt(b^2-4*a*c)/2*a one of the roots will be 12
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06 May 2010, 06:04
of course, you could plug in the answer choices in this equation : (40/(x-4))+(40/x) = (50/6)
I think it may be easier/faster even if you would have to go through all answer choices.
Great idea
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24 Sep 2010, 03:04
When i click,i get .php extension,is there any problem now?cant download it...

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24 Sep 2010, 07:24
Might come handy, Thanks !

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25 Jun 2012, 05:03
KUDOS bud....thanks. the diverse collection of problems were useful.

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27 Feb 2014, 22:15
Hello from the GMAT Club BumpBot!

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